804-R010-330 datasheet(5/32 Pages) MAGNETROL

5 / 32 page

50-604 Kotron Model 804 Sentinel II RF Level Transmitter

1.3

Connecting Cable

Remote mount connecting cable should be shielded,

twisted pair, 22-gauge stranded conductors and may be

ordered as Magnetrol part number 009-7146-001. Cable

length in feet must be specified at time of order; 2500 feet

(760 m) maximum; 800 feet (240 m) maximum for intrin-

sically safe models.

2.0

Installation

Caution: Carefully read this entire section prior to installation.

2.1

Installation Location

Kotron Sentinel II Transmitters should be placed in a loca-

tion which allows easy access for service, calibration, and

monitoring. Electronics should not be exposed to ambient

temperatures below -40° F (-40° C) nor above +160° F

(+70° C). Special precaution should be taken to prevent

exposure to corrosive atmosphere, excessive vibration,

shock, or physical damage.

It is common practice to use the metal tank wall as the

ground reference. When doing this, it is required that the

probe housing make a good electrical connection to the

tank wall. If there is any doubt about this connection

(rust or using PTFE thread tape, gaskets, or paint may

impede this connection), then a separate strap should be

installed between the probe housing and the tank.

Sensing probes should be located close to the tank wall for

greatest sensitivity in non-conductive media. Isolate probes

from severe motion in the tank because surface turbulence

may cause signal deviation.

Caution: This unit contains CMOS electronics that could be

damaged by static electricity. Do not touch any semi-

conductor devices unless you are properly grounded.

Metal-Walled Tanks

On water-based liquids, a problem should not be encoun-

tered with sensitivity or linearity. With non-conductive,

low dielectric media, sensitivity can be enhanced by locat-

ing the probe close to and parallel with the tank wall. If

this is not practical, a concentric ground tube surrounding

the probe (a stilling well) may be a solution.

804-R010-330 Datasheet(PDF) 5 Page - Magnetrol International, Inc.

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